In this presentation, I will review the history and literature debate about the anomalous gamma-ray emission detected towards the inner Galaxy by the Fermi-LAT telescope. The so-called Fermi GeV excess has been first discovered in the early 2010s and later characterised by several, independent, research groups. While its main features are well

We introduce the strong CP problem and the existence of the Axion as a possible solution. We discuss the possibility that axions are the dark matter of the Universe and the possible ways to detect it or disprove it using: direct laboratory experiments as well as astrophysical and cosmological arguments.

Axion detection would be one of the most exciting moments in the entire history of science. This hypothetical particle can simultaneously explain two fundamental problems in Modern Physics: the mystery of dark matter and the CP problem of the strong interaction. In this talk, I will provide an overview of the status for the search for axions and I